Steel side-dump car.



No. 866,620. PATENTED SEPT. 24, 1907.

3-. B'. CAMP-BELL. STEEL SIDE DUMP GAR.

APPLICATION IILBD SEPT. 29.1906.

8 SHEBTS-SHEBT 1.

an a i PATENTED'SEPT', 24, 1907.

YR. B. CAMPBELL. $TEEL SIDE'DUMP GAR. APPLIUATION FIL ED SEPT. 29.1906:

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PATENTED SEPT. 2 4, 190?.

R. B. CAMPBELL. STEEL SIDE DUMP GAR. APPLIGATION FILED ,SEP'I. 29.1906.

8 SHEETS-SHEET a.

No. 866,620. PATBNTED SEPT. 24,1907.

R. B. CAMPBELL.

STEEL SIDE DUMP GAR. APPLICATION FILED SEP-l.29.1906.

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J E. B. CAMPBELL. STEEL'SIDE DUMBCAR. APPLICATION TILED SEPT. 29,1906- 8 SHEETS-SHEET 6.

Mew/073' -0OOOOO'OOO 'PATENTED ESEPT. 24, 1907.

B. CAMPBELL. STEEL SIDE DUMP GAR. APPLICATION FILED SEPT. 29.1906.

8 MEETS-SHEET 6.

No. 866,620. PATENTED SEPT. 2 4, 1907.

' 1 R."B. CAMPBELL.

" STEEL SIDE DUMP CAR.

' AIIP-LIOATION FILED snPT. 29-.190e.

B SHEETS-SHEET 8.

" charged.

ROBERT CAMPBELL, OF JOLIET, ILLINOIS, ASSIGNOR OF ONE-HALF OLDEN, OF GHICAGO,'ILLI NOIS.

ONE-HALF TO WILLIAM Q.

UNITED srArnsfgrnnr oF Ion.

TO HIMSELF-AND STEEL srnn-nuMP CAR.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed September 29,1906- Serial No. 336,744.

i of the principal objects sought to be attained is the construction of ,a new and improved form of car from which the load may be dumped at either side of the track, or

at both sides simultaneously.

Another object of my invention is to provide new and improved mechanism for operating theswinging doors that close the openings through which the load is dis- It is also one of the objects of the invention to provide a construction that will insuie great strength to the car, and one wherein the strains incident to the use of such a car will be distributed throughout'the structure.

I attain theseobjects as illustrated in the drawings, and as hereinafter fully described. A

In the drawings :Figure l is a side elevation of my improved car. Fig. 2 is a diagrammatic longitudinal section. Fig. 3 is a side elevation of one end of the car,

some parts being in section, and others broken away to more fully illustrate the means employed for operating the doors at one side of the car. Fig. 4 is 'a cross section taken at line 4 4 of Fig. 1. Fig. 5 is a view similar to Fig. 4, but showing the doors at each side in their raised or closed position. Fig. 6 is a view similar to Figs. 4 and 5, but-showing both doors in their lower or open position. Fig. 7 is a cross section at line 7 7 of Fig. 1. Fig. 8 is a plan view of the supporting frame, taken at line 8 8 of Fig. 7. Fig. 9 is a vertical section illustrating the mechanism for operating the doors, such section being taken at line 9 9 01' Fig. 16. Fig. 10 is a cross section taken at line 10 10 of Fig. 9. 'Fig. 11 is a detail illustrating the manner. of hinging the doors, the view being a section at line 11 11 of Fig. 4. Fig. 12 is a side elevation of the devicesshown in Fig. 9. Fig. 13 is a detail illustrating the parts shown in Fig. 9 and being section'taken at line 13 13 of Fig. 16. Fig. 14 is a cross section taken at line 14 14 of Fig. 9. Fig. 15 is a cross section taken at line 15 15 of Fig. 9.. Fig. 16 is a cross section taken at line 16 16 of Fig. 9. Fig; 17 is a plan-view of the supporting frame, as in Fig. 8, but differing from Fig. 8 in showing the strengthening plate that is secured to such frame in place thereo'n. Fig.

18 is a plan view of the car-body.

Referring to the several figures of the drawings, in

' which corresponding parts are indicated by like reference characters,-20 indicates two side sills of the supporting frame of the car, and 21 the end sills, such parts being preferably formed of channel irons riveted together.

'22 23 indicate four wide, heavy girders extending across between the side sills 20 to which they are suitably riveted, the upper edges of such girders being, as shown in Figs. 4, 5 and 6, flush with the upper edges of the side sills. As shown in saidFigs. 4, 5 and 6, these cross girders 22 and 23 extend a considerable distance below the sills of the car, and, at their ends, are inclined from the side sillsinward. These girders are at opposite sides of discharge openings in the floor of the car, through whichopenings the material in the car is discharged when the swinging doors, hereinafter more s'pecifically referred to, are opened, and, when such doors are opened, said girders form efiective guards for preventing the material that is being dumped frorn'passing off at the sides of the lowered doors, the doors and these girders forming, in effect, discharge chutes for the material, as will be well understood. The girders 23 arev the inner ones or the onesnearest the center of the car, while the girders 22 are the ones nearest the ends of the car. Each wide girder 22 23 is braced at eachend by having riveted to it and to the under face of the adjacent side sill 20 a bracket 22 and 23", respectively, as best shown in Figs. 1 and 3. 1 V

24 indicates the center sill of the car, the same beingmade, in the form of construction shown, in two sec- 2 tions separated from each other, and the sill may, therc- These' fore, be properly termed an interrupted one. sections extend outward from the girders 22. Each section is preferably composed 0! two parallel channel irons, such channel irons being riveted to their respective girders 22. Each portion 24 of the central sill left open at its outer end to receive suitable draftrigging. At their outer ends they are riveted, or otherwise attached, U) the end sills 21, and are'braced by in-' ,terrncdiate cross sills or bars 25-,1theen'ds' of which are suitably secured to the side sills and said centrai sills,

26 indicates thesides of the car, such sides being preferably formed of a number of plates of steel suitably riveted together and held considerably above and parallel with the side siilsZO bya series of steel bars 27 prof-j erably formed of angle irons which are riveted to the outer face of the sills 20, as clearly shown in Fig. l, and I by a widcr upright 27 near each end, and a wider upright 27 at the center, which wider uprights are prcicrably formed of channel irons. I

.28 indicates inclined braces riveted at their lower ends to the outer faces of the side sills and extending from the base of one upright piece to about the middle portion of the adjoining uprightpiecethc braces-at one side of the median line 01' the car eiitcnding toward one end of the car,- while those on the other side of such line extend toward the opposite end of the car.

29 indicates the main floor of the car, which is prel'erriveted tosaid car-sides',-.and, from about the' lower edges ofsu'ch sides 26, it is inclined rather sharply inward -toward :the' longitudinal cnter'oi the car, and

over the.spaces betweenthe tw'o pairs of side cross -girders '22 and 23, it is'cut away, as clearly shown in covere'dLby-theisWinging doors hereinafter described. 1.

At-eachjendof the car are located inclined floor-pieces '30, 'alsozformbd of steel plates, such floor-pieces each extendingfrom nearone end of the car to the opening 1n th main lloor portion 29 so as to readily direct ma- 1terial inthe car to such opening when the car is to be unloaded? As shown, the car is divided centrally into two separate portions or pockets by triangular shaped -wings3l (see Fig. 4) which are suitably riveted to the sides of the car'body. Leading from the lower edge of such wings .31 are short ihclined floor pieces 32, that also act to direct material tothe openings in' the main floor sections. Both of the inclined portions of the main floor section 29 are braced from below by a flanged bar 33 extending lengthwise of the car at each side thereof,

each of said bar's being suitably riveted, or other-wise secured in place. Additional bracing to this main part of the floor is furnished at each side by two anglebars 34 spaced a distance apart. A set of these short angle bars is provided at each side over each of the wide beams 22 and 23, their lower ends resting upon a plate 58 that is riveted to the various sills and girders that constitute the supporting frame for the car-body.

35 indicates a smallplate extending across the faces of each pair of short angle bars 34 to which it is riveted, such plate being also secured in any suitable manner as, for example, by corner brackets, as in Fig. 13,-to

the longitudinally extending brace bar 33. I

58 indicates the plate hereinbefore mentioned. This -plate, which in practice will be formed of a number of sheets riveted together, lies over and rests upon the supporting frame. It extends nearly the full lengthoi the car, in the construction shown, it being riveted at its ends to the intermediate cross-sills 0r braces 25. This plate also extends lrom side to side of the supporting frame and is riveted along its side edges tothe side sills 20. It is also riveted 'to the centersill 24 and to the tops of the heavy cross girders 22 and 23, thus effectua-lly binding the various parts of the supporting frame together in such manner as to constitute it as a whole an extremely rigid structure, capable of resisting the great bufling and other strains that a car is constantly subjected to in use. In the central part of this plate 58 is formed an opening corresponding in size and shape to the opening in floor section 29. "91w each end of the car is provided a body bolster 18-, to. form discharge openings which are normally se m any bending strains induced by the'weight of the ma terial placed in the car. The ends of this bolster are'secured to thesidesoi the car-body a'sshown. and thus the stresses or strains are so transmittbd as to be equally distributed through these girder-like sidesu j '35 -iudicates a block lormedoi angle irons riveted together, or formed anyother desired manner, such block being securedbetween thetwo parallel members of the central sill 24a block 35 ibeing provided at each end of the car. These blocks are adapted to rest upon a truck-bolster (not shown) and connected therewith by a pin as usual.

36 indicates the swinging doors, a pair of such doors being adapted, when drawn up, to completely close the opening in the car floor between one of the pairs of heavy girders 22 23. Each pair of doors is attached by a pivot 37 passing through its side bar and through the adjacent cross-girder 22 or 23. The plate lorming the wearing surface of one of each pair of these swinging doors is turned to extend over the line of the pivots 37, as clearly shown in Figs. i, 5 and 6, so as to effectually prevent any'of the materialcarried by the car from getting onto the pivots. From the different positions 01' the doors shown in Figs 4,5and 6, it will be seen that, no matter what position the doors may be moved to with relation to each other, the pivots are at all times effectually guarded. When the doors are I both in their. raised position, as in Fig. 5, it will be seen that their uppersurfaces are in direct line with the sharply inclined floor'section 29, and, when one only of such doors is lowered, as in Fig. 4, the lower door will be in a direct line with the closed door, and hence a sharp incline will be furnished for discharging the entire con- I tents of the car at that side of the central division wings 31, so that all of the material in that compartment or 100 pocket of the car must be quickly ldischarged at one side of the car. When both doors are down, as in Fig. 6, the contents of that compartmentor'pocket of the car will be discharged evenly at opposite sides of the track.

These various doorsare operated through the medium of chains-which, togetherwith'thedevices ior exerting a pull upon thechainsawill'be hereinafter specifioally referred toand itiswell knownthat where chains are employedin-such-work it'is not uncommon for them -to stretch and lengthen on account of the heavy strains 1 10 to which they are subjected. This lengthening of the chains is oftensufiihient to cause the doors to stand open a number of inches, and so render the car unfit for the transportation of dirt, gravel, coal, and various other kinds of material, owing to the danger ol losing such material through the crack or opening leit by the partially-closed door. By my construction the chains may lengthen several inches and the free edges of the doors sag or dropcorrespondingly without leaving a crack or opening sufficiently large to permit of the escape of material such as mentioned, and this is due to the fact that the long itudinally-extending flanged bars 33 are so located and inclined that the edges of the doors are close to them during the first part of the downward swing of such doors, and as such bars 33 are quite wide it will be seen that the chains will have to stretch or lengthen very considerably before the doorscan swing belowv these bars, and until the doors have swung below I them ,there will; be but very little opening through which material 13f The means'ior operating the doors on one side of the car are the same as those on the other side, and hence a description of the mechanism for operating the doors on one side will be sufficient. Referring to such operating means, 38 indicates chains, one attached at each lower corner of each door 36, the attachment to the doors being, in the construction shown,-through the medium of a lug 39. Each of these chains passes over a pulley 40 that projects through a slotin one of the supporting angle bars 33, such pulley being journaled in the plate and fine of the corner bracketsbefore mentioned which connects such plate with the longitudinally extending angle bar 33 (see Figs. 9 and 13). Eachfof these chains, after passing over its pulley 40, passes/around another pulley that is located a little 'nearerto the side of the car than the first pulleypsuch second pulley be- 1 ing indicated by 41 and having its axle journaled between flanges 42 formed on one of the plates 35. The? axles of the pulleys 41 are at right angles to'the axles of 9 the pulleys in order that the chains may be pulled longitudinally of the car by'the devices about't'o be described. The end of each one of these lifting chains 38 has connected to it a short screw-threaded stem 43 which (with the exception of that one of the four chains on each side that is nearest to the hand-wheel herein- .after described) passes through a yoke-44 that is secured by a pin 45 to a pair of parallel sliding bars 46, the stem 43, as shown (see Fig. 13) having a nut or nuts on its screw-threaded portion so as to properly adjust the chain connected therewith as required. There are two swinging doors on each side of the car, as stated, and

there are four separate chains, two for each door, and each of them is connected with the pair of parallel sliding bars through a separate yoke 44, except that one nearest to the operating wheel.. That last-mentioned chain, after passing around its two pulleys 40 and 41, in

' the manner stated, has its connecting stern 43 passed through an car 47 that is made fast to or formed with another and longer yoke 48 that embraces and has secured to it an elongated nut 49 through which passes a long screwthrcaded rod 50, the screw-threads of which are, as best shown in Fig. 13, quite sharply inclined. The. yoke 48 and nut 49 are incased in along box 51 open at its 'inner end to receive the ends of the parallel operating rods 46 and the forward one of the chains 38. This box is secured to the under face of one of the sloping sides of the main floor section 29, by rivets, bolts, or otherwise. I have shown and described the doors as provided with chains by which they may be lifted, but cables of course might be employed in place of chains.

52 indicates a fixed healing carried at the inner end of the box 51, in which the smooth unthreadeu portion of the rod rests, the rod being held against longitudinal movement by a key 53 passing through the rod.

= 54 indicates a nut screw-threaded onto tlle'outer end of the rod 50 and secured thereto by a key, as shown, or

otherwise.

55 indicates a hand-wheel on the end of the rod.

56 indicates small angle irons so placed in the box 51 as to prevent'sidewise movement of the pair of parallel bars 46 and their attached yoke 44, and atthe same time forming a slot between them to allow oi the lateral projection of the car 47 (see Fig. 10). f

Each of the pulleys 41, except the forward one, is so located withreierence a the sliding parallel bars 46 as.

to bringthe link 43. carried by each chain between the said parallel bars, but the forward one of these four pul- -leys is located (see Fig, 13) so that the chain passing around it passes atone side of the parallel bars in order that its link may bebrought into position to properly pass through and exert a straight pull upon the ear47 that'projects out, as stated, from the long yoke 48. It is necessaryto do this in the construction shown in order to avoid contact of the forward link 43 with the screwthreaded-rod 50. The pulling effect, however, of this forward chain on the parallel bars is substantially the same as the pull of the other-chains on such' bars. These parallel sliding bars extend, as stated, longitudinally of the car, and for the greater portion of the length of the car. -.'They are guided and held in place by passing through suitableshaped-openings in the several plates .35. and by passing between the short flanged brace bars .whichare spaced apart slifiiciently to permit the' said sliding harstozmove freely. The flanges on these short brace bars-aid in. acting as guides for the sliding bars, as best shown in Figs. 9 and 13.

" '57:in l io tes a pivoted latch carried on'the supporting;

' frame work of the and adapted to be thrown between the. spokes of-the operating,wheel 55 so as to lock such wheel and thesha t keyed thereto from rotation. Any I other suitabledevice-for effecting the locking of these parts may be employed.

When a is desired to .discharge' the material from the car, that one. of the hand-wheels 55 at the side where thematerial is to be dumped'is to be released from engagement with its latch 57; and, inasmuch as the pitch of the screw on the shaft 50 is'a sharp one, the pressure. of the load on the ,doors at that-side of the car will, through the pulling strain exerted through the chains 38 and the pair of sliding bars 44170 which they are at-- tached, pull the nut 49 carried bythe yoke 48 backward on the screw shaft 50 sufliciently topause such shaft to rapidly reyolvHuchturning of the shaft, of course, carrying the nut towsrdsthe inner end of said shaft. The inward-movement of this nut in this manner, of course, allows the pivoted doors to swingon their pivots, and, by the time that. the nut has reached the I inner end .of its sgrew'flitpadedshsitfio, the doors will have reached their "lowermost position, as, for example, in Fig. 4, and when in that position will be brought to rest against suitable stops 58 preferably formed of pieces of angle iron riveted to the .inner faces of the heavy cross-girders 22 and 23. It is to be understood that if the dumping of the materialis to beatone side only, but one of the wheels 55 is to be unlatchedtbu talll it thedumping is to be at both sides, both wheels will be released at the same time. After the load has been discharged, the doors are to be raised into their closed position, as in Fig. 5', by an attendant turning the handwheel 55. The result of such turning is, of course, to

cause the nut 49 to be moved in the box 50 towards the outer end of such box, and as the sliding bars 44 are bolted to the yoke 48 that carries such nut such sliding bars will be correspohdingly moved and also exert the required pull on the several chains 38 that are connected with such sliding bars.

The sides 26 of the car, owing to their method of construction, form, in effect, girders, and, by bracing them I in the mannel' dscfili'ed and connecting them with the supporting frame work formed by the sills, an ex- '20 use.

ceedingly strong construction is insured, enabling the car to withstand heavy shocks incident .to the character of the work in which it is engaged.

From the drawings and the specific description of 5 the several parts hereinbefore given, it will be seen that at each side of the car there is formed a columnlike construction disposed horizontally and in length equaling the distance between the two body bolsters 35"such column-like structure being of irregular v shape and having its sides .fomned of the channel iron 35, the inclined floor section 29, the plate 58 and the braces 27, 28, 27 and 27 in which column-like strucmm are housed the mechanism for operating the pivoted doors, access to which mechanism is readily obtainedat any time between the braces specified. In addition to thisconstmction affording a housing for the parts, it so stiffens the car as a whole as to render it capable of resisting the great compressive and other strains to wh-ichsuch a car is constantly subjected in liu-rthermore, in addition to what has been stated, it will be understood that by reason of the plate 58 being riveted to the various sills of the supporting frame and the inclined floor section 29 resting upon the said plate and secured in place by rivets to the said '25 plate and the cross-girders and intermediate sills, the

the longitudinal center of the car and provided with a discharge opening in each inclined portion, of two doors pivoted at substantially the longitudinal center of thecar, cross-girders at each side of each door to direct all of the material discharged from the car and over the doors to the side of the car-track, lifting chains for the doors, devices 40 movable longitudinally of the car to which said chains are connected, and means for moving said longitudinally movable devices to operate the doors, substantially as described. 1

2. In a side-dump car, thecombination with a suitable supporting frame comprising side and end sills, of a carbody comprising sides, ends and a floor, said sides being held above and away from the said side sills, and said floor being inclined from the said sides toward the longitudinal center of the car and provided with a discharge opening in each inclined portion, two doors pivoted at substantially the longitudinal center of the car, lifting 'chains for the doors, devices located in the spaces between the inclined floor and the supporting frame, to which devices said chains are connected, and means for moving said devices longitudinally of the car to operate the doors,

substantially as described.

In a side-dump car, the combination with a suitable supporting frame comprising side and end sills, of a carbody comprising sides, ends and a floor, said sides being .held above and away from the said side sills, and said flbor being inclined from the said sides toward the longitudinal center of the car and provided with a discharge opening in each inclined portion, two dodbs pivoted at substantially the longitudinal center of the car, lifting chainsfor the doors, longitudinally-movable bars beneath the inclined portionsof the floor to which bars the said chains are attached, guides in which said bars are supported, and means for moving said bars, substantially as described.

4. In a dump-car, the combination with a suitable supporting frame comprising side and end sills, of a car-body comprising sides, ends and a floor, -said sides being held above and away from the said side sills, and said floor ceased being inclined downward from the sides towards the centcr and having discharge openings therein, swinging doors for said openings, lifting chains for the doors, and means located in the spaces between the inclined floor and the said supporting frame for operating the doors by pulling on the chains, substantially as described.

5. In a dump-car, the combination with a suitable supporting frame comprising side and end sills, of a car-body comprising sides, ends and a floor, said sides being held above and away from the said sidesills, and said floor being inclined downward from the sides towards the center and having a discharge opening therein, cross-girders at opposite sides of said opening, said girders being connected at their ends to the said side sills-andextending below the same, 'dOOl'S pivoted between said cross-girders, lifting chains connected to said doors, and means located in the spaces between the inclined floor and the said supporting frame for raising the doors by exerting a pull on said chains, substantially as described. l i

6. Inc side-dump car, the combination with an inclined floor section having an opening therein, of a pivoted door for closing such opening, lifting chains for the door, a longitudinally. movable member located beneath the inclined floor and to which said chains are connected, of a screw-threaded i'od located at one end of the car and extending longitudinally thereof. a nut on said rod, means for holding said nut against rotation,'mea'ns for connect; ing said longitudinally movable member with the nut, and a hand-operated device for turning the screwthreaded rod. substantially as described. f a

7. In a side-dump car, the combination with an inclined floor section having a discharge opening therein, of a pivoted door for closing such opening, a rotatable screwthreaded rod extending longitudinally of the car and sup ported in bearings at one end of the car, a nut on said screw-threaded To means for holding said nut against rotation, and meal s connected with said nut and door for causing the moving of the door when said nut is moved on said rod, substantially as described.

8; In a side-dump car, the combination with an in-, clined floor section having a discharge opening therein,-

of a pivoteddooi' for closing such opening, a box or casing secured to the under face of said inclined floor and extending longitudinally of the car, a rotatable screw-threaded rod journaled in said box or casing,.a nut on said screwtln'eaded rod, means for holding said nut against rota- 'tion, and means connected with said nut and door for causing the moving of the door when said nut is moved on said rod, substantially as described.

9. In a side-dump car, the combination with an inclined fioor section having a discharge opening therein, of apivoted door for closing such opening, a box or casing suitably supported at one end of the car and located beneath the inclined floor and extending longitudinally of the car, a rotatable screw-threaded rod journaled in said box or casing, a nut on said screw-threaded rod, means for holding the nut against rotation, a rod connected at one of its ends with said nut and extending longitudinally of the car, chains connecting said rod and door, and pulleys over which said chains pass, substantially as described.

10. In a side-dump car; the combination with an inclined floor section having'a discharge opening therein, of a pivoted door for closing such opening, a box or casing suitably supported at one end of the car and located beneath the inclined floor and extending longitudinally of the car, a rotatable screw-threaded rod journaled in said box or casing, a nut on said screw-threaded rod, a yoke embracing said nut, a rod connected at one of its ends to said yoke and extending longitudinally of the car, chains connecting said rod and door, and pulleys over which said chains pass, substantially as described.

11. In a side-dump car, the combination witli an inclined floor section having it discharge opening therein, of

=a rod connected at 'one of its ends to said .yoke and ex beneath the inclined floor and extending longitudinally of the car, a rotatable screw-threaded rod journaled in said box'or casing, a nut on said screw-threaded rod, a-

yoke embracing said nut, and having a laterally projecting lug, two parallel bars secured to opposite' sides of said yoke and extending longitudinally of the car, a'lift ing chain connected at eachside of the door, one of said chains being attached to said lateral lug, asecond yoke secured between the pair of parallel bars to which-last named yoke the other chain is connected, and pulleys over which said chains pass, substantially as described.

13. In a side dump car, the combination with an inclinedfioor section having an opening therein, of a pivoted door for closing such opening, lifting chains for the door, a longitudinally-movable bar located beneath the inclined floor, guiding pulleys over which the chains pass, a connection for each chain with the bar, guides for supporting the bar, and means for moving the bar to operate the doors, substantially as described.

14. In a side-dump car, the combination with an inclined floor section having an opening therein, of'a pivoted door for closing such opening, lifting chains for the door, a pair of parallel longitudinally-movable bars located beneath the inclined floor, guiding pulleysover which the chains pass, a connection for attaching one of the chains between the bars, another connection for connecting another of the chains with the bars at one side of said bars, and means for moving the bars to operate the doors, substantially as described,

15. In a side dump car, the combination with an inclined floor section having an opening therein, of a pivoted door for. closing such opening, and a fixed member adja-' cent to suchfloor-opening adapted to aid in checking the escape of material from the car until the door has swung past such member, substantially as described.

16. In a side dump car, the combination with an inclined floor section having an opening therein, of a pivoted door for closing such opening, and a fixed inclined member adjacent to such floor-opening adapted to aid in checking the escape of material from the car until the door has.

swung past such member, substantially as described.

17. In a side dump 'car, the combination with a supporting frame comprising side and end sills, of a carbody comprising sides and ends and an inclined floor, said floor having a discharge opening through it, a pivoted door for closing such opening, lifting chains for said door, a fixed bar extending longitudinally of the car and connected with both'the said supporting frame and inclined floor and located at one side of said floor-opening,

" ing said bar being provided with openings through which said chains may pass, pulleys for guiding said chains, and means for exerting a pull on said chains in the di rection of the length of the car, substantially as described.

18. In a side-dump car, the combination with a suitable supporting frame comprising side and end sills, of a carbody comprising sides, ends and a floor, said sides being held above and away from the said side sills, and said floor being inclined from the said sides towards the longitudinal center of the car and provided with a discharge opening in the inclined portions, braces between the said support frame and the under side of the inclined-portions of tloor, doors for closing the opening in the floor, liftchains attached to the doors, a longitudinally-movable located at each side of the longitudinal center of the and guided by the said braces, means for attaching said chains to said rods, and means for moving the the in g rod car the rodg to operate the said doors, substantially as described.

19. In a side dump car, the combination with a supporting frame comprising suitable sills, a plate aflixed to the upper faces of said sills and provided with a discharge opening ,therethrough, of a car-body comprising sides, ends and a floor, said sides being held above and away from the said side sills and said floor being inclined from the said sides towards the longitudinal center of the car and provided with a discharge opening over the opening in the said plate, braces between the'said supporting frame and the under side of the inclined portions of the floor, doors for closing said openings, lifting chains attached to the doors, a longitudinally-movable device lo' cated at each side of the longitudinal center of the car and guided by the said braces mcans for attaching the said chains to saidlongitudinally-movable devices, and means for moving said last-named devices to operate the said doors, substantially as described.

20. In a side dump car, the combination with a supporting frame comprising suitable sills, a plate atfixed to the upper faces of said sills and provided witha discharge opening therethrough, of a car-body comprising sides, ends and a floor, said sides being held above and away from the said side sills and said. floor being inclined from the said sides towards the longitudinal center of the car and provided with a discharge opening over the opening in the said plate, a beam at each side of the car extending longitudinally thereof and serfing as a brace between the said supporting frame and the inclined floor, braces connected to the side sills and the sides of the car-body, whereby a horizontal hollow column is formed at each side of the car consisting of said plate, beam, inclined door and braces, a longitudinally-movable device located within-each obsaid hollow columns, doors for closing the said discharge openings, and chains connected to said doors and to said longitudinallymovable devices, sub stantially as described.

ROBERT B, CAMPBELL.

Witnesses 

